Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > iPhone, iPod and iPad > iOS > Jailbreaks and iOS Hacks

Reply
 
Thread Tools Search this Thread Display Modes
Old May 10, 2011, 10:56 AM   #1
bonchien
macrumors newbie
 
Join Date: Apr 2011
GPS not working on 3g with 4.2.1 and 05.11.07 bb?

I was tired of GPS not working on my iPhone 3g with 4.2.1 and the ipad base band 06.15.00 so it could be used on TMO, so I picked up a 3g on craigslist that was unlocked and jailbroke. This 3g has 4.2.1 and 05.11.07 base band. The guy who sold it to me assured me GPS worked fine, but it doesn't. It will only triangulate wifi and cell towers and never finds a GPS signal when I try the skobbler GPS app with wifi turned off.

Is there a way to fix GPS without restoring the firmware? Sorry if this is a NOOB question, but I've read for hours and can't find a straight answer. Should I downgrade the firmware to 3.1.2? If so, can I use the official 3.1.2 firmware and unlock/jailbreak with Blackra1n, or do I need to create a custom firmware to downgrade?

Thanks for any advise.

Last edited by bonchien; May 11, 2011 at 02:40 PM.
bonchien is offline   0 Reply With Quote
Old May 10, 2011, 10:59 AM   #2
heisenberg123
macrumors 603
 
heisenberg123's Avatar
 
Join Date: Oct 2010
Location: Hamilton, Ontario
Quote:
Originally Posted by bonchien View Post
I was tired of GPS not working on my iPhone 3g with 4.2.1 and the ipad base band 06.15.00 so it could be used on TMO, so I picked up a 3g on craigslist that was unlocked and jailbroke. This 3g has 4.2.1 and 05.11.07 base band. The guy who sold it to me assured me GPS worked fine, but it doesn't. It will only triangulate wifi and cell towers and never finds a GPS signal when I try the skobbler GPS app with wifi turned off.

Is there a way to fix GPS without restoring the firmware? Sorry if this is a NOOB question, but I've read for hours and can't find a straight answer. Should I downgrade the firmware to 3.1.2? If so, can I use the official 3.1.2 firmware and unlock/jailbreak with Blackra1n, or do I need to create a custom firmware to downgrade?

Thanks for any advise.
i always thought unlocking a 3G disabled the GPS
heisenberg123 is offline   0 Reply With Quote
Old May 10, 2011, 11:14 AM   #3
AdrianK
macrumors 68020
 
Join Date: Feb 2011
Can't you just get a refund from the guy on CL?

Quote:
Originally Posted by iisforiphone View Post
i always thought unlocking a 3G disabled the GPS
Flashing iPad BB can cause loss of GPS, but that's the only case when that occurs.
__________________
Desktop: i3 4130 - OS X 10.9 & Windows 8
Notebook: i5 3317U - Xubuntu 14.04
AdrianK is offline   0 Reply With Quote
Old May 10, 2011, 11:20 AM   #4
bonchien
Thread Starter
macrumors newbie
 
Join Date: Apr 2011
Quote:
Originally Posted by AdrianK View Post
Can't you just get a refund from the guy on CL?
I could try that, but don't envision much success. I would rather have a 3g with working GPS. Just figured downgrading the firmware might work, but don't know for sure.
bonchien is offline   0 Reply With Quote
Old May 10, 2011, 06:32 PM   #5
bonchien
Thread Starter
macrumors newbie
 
Join Date: Apr 2011
downgrade didn't help GPS

I went ahead and downgraded to 3.1.2 and jailbroke it with Blackra1n, GPS didn't work. Installed the most recent whited00r firmware, and still no GPS. Maybe jailbreaking is killing GPS, or maybe the GPS chip is dead?

I don't have an AT&T sim, so I can't try it on official firmware.
bonchien is offline   0 Reply With Quote
Old May 10, 2011, 06:34 PM   #6
MBHockey
macrumors 68040
 
Join Date: Oct 2003
Location: New York
Why would downgrading the OS help? It doesn't change the fact that you're running an iPad baseband...
MBHockey is offline   0 Reply With Quote
Old May 10, 2011, 06:46 PM   #7
AlphaDogg
macrumors 68040
 
AlphaDogg's Avatar
 
Join Date: May 2010
Location: Denver, CO
Quote:
Originally Posted by MBHockey View Post
Why would downgrading the OS help? It doesn't change the fact that you're running an iPad baseband...
Read the OP. It states that the OP doesn't have the iPad baseband...

We really gotta get new abbreviations for original post and other person...
__________________
15" 2.66GHz C2D uMBP | 13" 2.4GHz i5 MBP 500GB | '07 MacBook
iPhone 5 32GB | iPhone 3GS 8GB | iPhone 8GB
אני רוצה לעשות עליה לישראל
AlphaDogg is offline   0 Reply With Quote
Old May 10, 2011, 10:19 PM   #8
MBHockey
macrumors 68040
 
Join Date: Oct 2003
Location: New York
Quote:
Originally Posted by AlphaDogg View Post
Read the OP. It states that the OP doesn't have the iPad baseband...

We really gotta get new abbreviations for original post and other person...
I read it too quickly, sorry OP ()
MBHockey is offline   0 Reply With Quote
Old May 11, 2011, 02:40 PM   #9
bonchien
Thread Starter
macrumors newbie
 
Join Date: Apr 2011
Fixed it!

I figured it out. The iPhone 3G with the lower base band 05.11.07 had a new back case when I bought it. I guessed that maybe the GPS antenna didn't get installed correctly. So I swapped the back cases between the 3G with base band 06.15.00 and 5.11.07. Now the one with 05.11.07 base band gets GPS positioning

Might be a bad antenna in the 06.15.00 iPhone or it just wasn't connected properly. I won't worry about it until there's a way to downgrade or fix the 06.15.00 base band.
bonchien is offline   0 Reply With Quote

Reply
MacRumors Forums > iPhone, iPod and iPad > iOS > Jailbreaks and iOS Hacks

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
iPhone: My GPS isn't working properly anymore bmaniara92 Jailbreaks and iOS Hacks 0 Jan 7, 2014 11:58 AM
GPS based reminders not working thekb iOS 7 2 Nov 9, 2013 11:15 AM
iPhone: iPhone 5 / iPad 3 with Airport Extreme and WPA2 not working, WPA working ManuCH iOS 6 7 Aug 13, 2013 08:20 PM
GPS not working on iPhone guitarmandp iPhone 0 Jan 19, 2013 03:34 AM
Apple Maps GPS vs Google Maps GPS - My Thoughts thomamon iPhone and iPod touch Apps 6 Jan 4, 2013 03:22 PM

Forum Jump

All times are GMT -5. The time now is 09:26 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC